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• There is a new table: filter - it allows to store custom user filters
• There is a new table: user_filter - it allows to link filter with user; it is possible to share filter between different user - this is why filters require linking table between user and filter

Refined schema (step 10)

user_filter

• There are fixes inside user_filter table
• There is a new explicit ID column
• relations are non-identifying (user - user_filter - filter)

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Refined schema (step 11)

experiment_description

• experiment_description is a table that allows to uniquely identify experiments based on dataset_description IDS
• https://trello.com/c/8lZbmTBg

VARCHAR to TEXT

• all text fields are now represented by TEXT fields

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